[petsc-users] PETSc and dense matrices

[Hamid M.]

On Thu, Jan 6, 2011 at 12:55 PM, Jed Brown <jed at 59a2.org> wrote:
>>
>> 2- Are there optimized parallel solvers for dense matrices in PETSc ?
>
> The current implementation uses PLAPACK.
>
> You might also consider using FMM (see
> http://barbagroup.bu.edu/Barba_group/PetFMM.html) since explicit storage of
> dense matrices cannot scale.

I am not sure why my case would be explicit storage, even if I use
MatCreate and MatSetValues
do I still need to be concerned about scalability issues ?

thanks,
Hamid